There is new and significant polling from the swing states which is energising the Kamala Harris’s Democratic campaign.
But beyond the headline numbers, what do the polls tell us about how long the vice president’s boost in popularity might last?
Americast is part of the BBC News Podcasts family of podcasts.
Subscribe here: http://bit.ly/1rbfUog
For more news, analysis and features visit: www.bbc.com/news
#KamalaHarris #DonaldTrump #BBCNews